Product Profile of Numerical Motor Over-Current Protection Relay
Numerical Motor Over-Current Protection Relay requires internal reconstruction phase-phase voltage and open delta voltage for direction detection. The Over-Current Protection Relay enables internal calculation of zero seq. EF current [3Io] and Zero sequence voltage [3Vo] for directional detection for Earth fault. Ashida Eletronics Pvt. Ltd., an ISO 9001:2008 certified company manufactures Numerical Motor Over-Current Protection Relay.
Ashida Eletronics Pvt. Ltd. offers a wide range of electrical power protection relays, auxiliary protection relay and SCADA systems. The Numerical Motor Over-Current Protection Relay is designed with the facility of 3 Phase voltage check and On site CT Secondary selection of 1A or 5A.
Salient features of the Numerical Motor Over-Current Protection Relay:
Over-Current Protection including doubling feature
Negative phase sequence element [46] includes Phase reversal.
Selection of Curve: Five selectable IEC curve, Normal Inverse, Very inverse, Extremely inverse, Long time inverse [C5]] and Define Time [C6]
Five C7 to C11 selectable IEEE/ANSI Curve another C1 to C11 RI/RXIDG curve with Drop-off time delay.
Thermal Overload Protection.
Start Number Protection.
Stall Protection.
Breaker Failure detection
In-built CB Trip Circuit Supervision function during pre closing and post closing of CB.
Under current Protection
On site CT Secondary selection 1A or 5A.
Under/Over voltage Protection.
Under/Over Power Protection.
Internal reconstruction phase-phase voltage and open delta voltage required for direction detection
nternal calculation of zero seq. EF current [3Io] and Zero sequence voltage [3Vo] for directional detection for Earth fault
Residual O/V [NDV] Protection.
3 Phase voltage check.
